Abstract: Haptics for an intraocular lens are attached to a flexible, deformable optic which is capable of being rolled for insertion through a small incision in the cornea. The outer periphery of the optic is circular. The haptics include a pair of stems extending radially on diametrically opposite sides of the optic. The stems are rectangular in cross section, having greater width than thickness to permit greater flexibility anterior to posterior than superior to inferior. A flexible support bar is mounted at the end of each stem, each bar being bisected by its stem respectively, and being shaped like an arc concentric with the optic. The support bar has greater depth than width, in order to permit greater flexibility proximally and distally than anteriorly and posteriorly. The haptics have a haptic arm mounted in cantilever fashion at the ends of each support bar, each of the arms terminating in a circular or lobular footplate.

Abstract: A deformable, artificial intraocular contact lens for implantation into the human eye to correct normal-vision problems. The lens may be positioned posteriorly from the iris, resting against the anterior surface of the posterior capsule's natural lens. Alternatively, the lens may be positioned in the anterior chamber of the eye. The implanted lens works in conjunction with the cornea and natural lens to provide proper vision, as a substitute for regular contact lens, spectacles, and radial keratotomy. The lens may be designed from a rigid or semi-rigid material. Due to the thinness of the structure, the lens may be rolled and inserted into the eye, minimizing both the length of the corneal incision and the stretching of the cornea.

Abstract: An intraocular lens with crossed haptics, suitable for implantation in either a phakic or an aphakic eye and a method for implanting and releasing the haptics after implantation in the eye. The lens comprises a very thin, deformable optic having two pairs of haptics attached to the optic by means of two stems 180.degree. apart on the circumference of the optic, each tapering to a tip having one haptic each connected to opposite edges of the stem. Each haptic has a footplate defined at the free end of the haptic. Each haptic sweeps about the periphery of the optic so that the angle subtended by a radial line extending from the center of the optic through the center of a footplate and a second radial line extending from the center of the optic through the center of the stem to which it attaches is about 135.degree.. The lens is symmetrical about an axis extending through the opposing stems, with each haptic crossing either over or under the haptic connected to the opposing stem on the same side of the axis.

Abstract: A device for controlling the release of retracted haptics on an intraocular lens is described. By controlling the retraction of the haptics, it is possible to obtain a more precise placement of the lens in the eye. The lens is attached to the device by means of sutures, which allows the lens to be safely and conveniently positioned in the eye.

Abstract: Damage to endothelial and epithelial cells subject to trauma can be substantially reduced by using a wafer of a viscoelastic material. This method is particularly useful when applied prior to ophthalic surgery, particularly intraocular lens implantation surgery. Lens implantation is facilitated by the compression of lens haptics by this delivery system.

Abstract: A system for collapsing the lens loops of an intraocular lens in preparation for insertion of the lens into a human eye and forming and maintaining the lens loops in a collapsed position during the lens insertion operation. The system includes an apparatus for mating the intraocular lens with an incapsulating structure such as a wafer fabricated from viscoelastic material. The device is designed in a manner which causes the lens loops of the intraocular lens to collapse as the lens is inserted into the incapsulating structure during the mating process. In a preferred embodiment, the device may comprise a rotor element mounted on a baseplate for supporting the intraocular lens beneath the incapsulating structure, whereby the lens can be rotated or "dialed" into the incapsulating structure.

Abstract: An intraocular lens suitable for implantation providing four points of supporting contact within the eye and having, in unitary construction, a generally circular central lens body having, in the circular plane of the lens, centered about the 12:00 o'clock position a flat tab for manipulating the device during implantation or removal, and, in definition relative to a projection in the same plane defined by the tab and lens body, two flexible haptic lines symmetrically centered about the 6:00 o'clock position emerging between the 4:00-5:30 and 6:30-8:00 regions, respectively, which haptic lines radiate away from the central lens body following arcs defined by a common radius 0.40-0.60 times the planar radius of the central lens body; wherein said haptics symmetrically trace smooth, diverging curves ("knees") ranging from 30.degree.-50.degree.

Abstract: An intraocular lens suitable for use as an artificial lens implant including a medial light focusing lens body, a stem protruding from the periphery of the lens body to an outer edge thereof formed as a stem footplate adapted to make contact with eye tissue, and first and second flexible members extending from opposite sides of the stem footplate. The end of each of the flexible members is formed as a flexible member footplate so that the three footplates make contact with eye tissue at equally angularly spaced positions from the center of the lens body.